JP4323204B2 - Ultrasonic treatment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ultrasonic treatment apparatus that grasps a biological tissue and performs ultrasonic treatment such as incision, excision, or coagulation of the biological tissue.
[0002]
[Prior art]
Generally, an ultrasonic treatment apparatus performs ultrasonic treatment such as incision, excision, or coagulation on a living tissue. In this ultrasonic treatment apparatus, an ultrasonic transducer is disposed in the operation unit on the hand side, and an ultrasonic probe for transmitting ultrasonic vibration generated by the ultrasonic transducer and treating a living tissue is provided at the tip. An ultrasonic treatment tool disposed on the side and an apparatus main body that controls the ultrasonic treatment tool are configured, and a jaw for grasping a living tissue is opposed to the ultrasonic probe on the distal end side of the ultrasonic probe. Thus, it is rotatably arranged.
[0003]
For example, as disclosed in Japanese Patent Application Laid-Open No. 2000-296133 (Patent Document 1), a jaw for grasping such a living tissue can be operated by operating a movable handle disposed in an operation unit. Opened and closed with respect to the ultrasonic probe. That is, as the movable handle is operated, the operating rod connected to the jaw advances and retracts in the axial direction, and the ultrasonic probe is operated as the jaw closes the ultrasonic probe in conjunction with the forward and backward movement of the operating rod. And grasp the living tissue between the jaws. In this state, ultrasonic treatment such as incision, excision, or coagulation is performed on the grasped biological tissue by transmitting ultrasonic vibration from the ultrasonic transducer to the ultrasonic probe. Yes.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-296133
[Problems to be solved by the invention]
However, in the conventional ultrasonic treatment instrument, as disclosed in Patent Document 1, a link mechanism is used to rotatably support the jaw on the distal end side of the ultrasonic probe. A small pin-shaped shaft member and a hole for fitting the shaft member are provided in the connecting portion and the holding portion that supports the jaw on the distal end side of the ultrasonic probe.
[0006]
Therefore, in manufacturing the jaw and the peripheral parts, not only a precise and complicated processing for the link mechanism is required, but also the structure becomes complicated and the number of assembling steps increases, and the production efficiency of the ultrasonic treatment tool as a whole decreases. There is a risk of inviting. Even in actual use after product shipment, it takes time to clean the small shaft member and the fitting hole around the jaw when sterilizing and disinfecting the ultrasonic treatment instrument.
[0007]
The present invention has been made in view of the above circumstances, simplifying the configuration by reducing the shaft member and fitting hole as much as possible from the mechanism around the jaw, improving the productivity of the device, and in the actual use state in the market An object of the present invention is to provide an ultrasonic treatment apparatus capable of improving washing and sterilization.
[0008]
[Means for Solving the Problems]
To achieve the above object, an ultrasonic treatment apparatus according to the present invention is to transmit the ultrasonic vibration generated by the ultrasonic vibrator, and the ultrasonic probe to treat a living tissue, openable against the said ultrasonic probe A jaw provided between the ultrasonic probe and a jaw holding the living tissue, a jaw holding portion for supporting the jaw, and an operation rod connected to the jaw to be advanced and retracted to transmit an opening / closing operation force to the jaw The jaw is connected to one of the jaw holding part and the operation rod so as to be rotatable via a shaft member, and the other is non-axially connected to the other via an elastic member. It is characterized by that.
[0010]
With this configuration, the mechanism around the jaws can be simplified to improve the productivity of the apparatus, and the washing and sterilization properties in the actual use state in the market can be improved.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 relate to a first embodiment of the present invention, FIG. 1 is an overall configuration diagram of an ultrasonic treatment apparatus, FIG. 2 is a circuit block diagram of the ultrasonic treatment apparatus, and FIG. 3 is an exploded view of an ultrasonic treatment instrument. 4 is a side view showing the assembled state of the ultrasonic treatment device as a whole, FIG. 5 is a cross-sectional view of the main part around the jaw, FIG. 6 is a cross-sectional view of the main part showing the open state of the jaw, and FIG. It is principal part sectional drawing which shows the modification of a jaw.
[0012]
As shown in FIG. 1, the ultrasonic treatment apparatus 1 of the present embodiment is configured by connecting an ultrasonic treatment tool 2 and a foot switch 3 to an apparatus main body 1A. The ultrasonic treatment instrument 2 includes a treatment portion 5 disposed at a distal end portion of an elongated sheath-like insertion portion outer tube 4 and a proximal side operation portion 6 disposed at a proximal end portion.
[0013]
The operation unit 6 includes an ultrasonic transducer (not shown) that generates ultrasonic vibrations, and is provided with an operation handle 8 for operating the treatment unit 5. Further, the insertion portion outer tube 4 is provided with a vibration transmission member 9 for transmitting ultrasonic vibration from the ultrasonic transducer to the treatment portion 5. The distal end portion of the vibration transmitting member 9 is exposed to the outside from the distal end of the insertion portion outer tube 4.
[0014]
In addition, the operation panel 12 is provided on the front surface of the apparatus main body 1A. The operation panel 12 includes a power switch 13, an operation display panel 14, and an ultrasonic treatment instrument connection unit 15. Here, the operation unit 6 of the ultrasonic treatment instrument 2 is connected to one end of the handpiece cord 16. And the handpiece plug 17 arrange | positioned at the other end part of this handpiece cord 16 is detachably connected to the ultrasonic treatment instrument connecting portion 15 of the apparatus main body 1A.
[0015]
The operation display panel 14 of the apparatus main body 1A has a setting switch 18 for setting the magnitude of the ultrasonic output during normal operation when performing ultrasonic treatment, and the magnitude of the ultrasonic output set by the setting switch 18. And a display unit 19 for digitally displaying the height. The setting switch 18 is provided with an output increase switch 18a for changing (increasing / decreasing) the magnitude of the ultrasonic output and an output reduction switch 18b.
[0016]
Furthermore, the apparatus main body 1A incorporates a drive circuit 20 for supplying electric energy to the ultrasonic transducer in the ultrasonic treatment instrument 2 as shown in FIG. The drive circuit 20 includes an oscillation circuit 21 that generates an ultrasonic signal having an ultrasonic frequency, a D / A converter 22 that generates a signal that indicates the magnitude of the ultrasonic output, and a signal from the D / A converter 22. And a power amplifier 24 for amplifying the output of the VCA circuit 23 to generate power for driving the ultrasonic transducer in the ultrasonic treatment instrument 2. The relay 25 for turning on / off the output line of the drive circuit 20, the control circuit 26 for controlling the operation of the ultrasonic treatment apparatus 1, and the interface (I) for transmitting the operation signal from the foot switch 3 to the control circuit 26 and the relay 25. / F) circuit 27 is provided.
[0017]
In addition, the control circuit 26 makes the ultrasonic output from the ultrasonic transducer in the ultrasonic treatment instrument 2 larger than the set output value by the setting switch 18 at the start of the ultrasonic treatment by operating the foot switch 3, An operation state switching means for controlling the ultrasonic output from the ultrasonic transducer to be a set output value when a predetermined set time set in advance has elapsed after the start of treatment is incorporated. Note that the relay 25 of the drive circuit 20 is interposed between the ultrasonic treatment instrument connector 15 and the power amplifier 24.
[0018]
As shown in FIGS. 3 and 4, the ultrasonic treatment instrument 2 can be disassembled into three units. That is, the handle unit 31, the probe unit 32, and the transducer unit 33 are configured. These three units 31 to 33 are assembled in the state shown in FIG.
[0019]
The vibrator unit 33 is provided with a handpiece 34 that is detachably connected to the handle unit 31. The handpiece 34 includes an ultrasonic transducer (not shown) for generating ultrasonic vibration in a cylindrical cover 34a. In this ultrasonic transducer, a horn (not shown) for expanding the amplitude is connected to the distal end side, and the proximal end of the probe unit 32 is attached to the distal end side of the horn.
[0020]
Further, the cylindrical cover 34a is provided with a unit connecting portion 34b that is detachably connected to a vibrator connecting portion 6b of an operation portion main body 6a (to be described later) of the handle unit 31 at the front end, and a handpiece at the rear end. A handpiece cord 16 provided with a plug 17 is connected. On the outer peripheral surface of the unit connecting portion 34b, an engagement ring 39 (so-called C-ring) having a C-shape with a part of the ring cut off is mounted. Note that the engagement ring 39 is formed in a substantially half-moon-like cross-sectional shape in which the cross-sectional shape has an arc on the outer periphery.
[0021]
Further, the probe unit 32 is provided with an elongated substantially rod-shaped vibration transmission member 9 that is detachably connected to the tip of a horn (not shown) in the transducer unit 33. A mounting screw 41 a connected to the probe mounting portion of the horn is formed at the base end portion of the vibration transmitting member 9. The mounting screw 41 a is screwed and fixed in the screw hole portion of the probe mounting portion in the vibrator unit 33. Thereby, the probe unit 32 and the vibrator unit 33 are assembled together.
[0022]
Further, the vibration transmitting member 9 is provided with a flange-like support body 41b at the position (a plurality of positions) of the nodes of standing waves of ultrasonic vibration transmitted from the base end side. The support 41b is formed in a ring shape with an elastic member. In the vibration transmission member 9 of the present embodiment, a proximal horn 41c that performs second-stage amplitude expansion is disposed in front of the second node from the proximal end side. Further, on the distal end side of the proximal horn 41c, an intermediate portion 41d for transmitting ultrasonic vibration, a distal horn 41e for final amplitude expansion, and a treatment portion 41f (ultrasonic probe) are sequentially arranged. ing. Here, the treatment portion 41f arranged at the most distal end portion of the vibration transmitting member 9 is formed in a substantially circular cross-sectional shape.
[0023]
The handle unit 31 includes an elongated insertion sheath portion 31a, a distal end working portion 31b disposed at a distal end portion of the insertion sheath portion 31a, and an operation portion 6 disposed at a proximal end portion of the insertion sheath portion 31a. Consists of Here, the operation unit 6 of the handle unit 31 is provided with a substantially cylindrical operation unit main body 6a. A transducer connecting portion 6b is formed at the base end portion of the operation portion main body 6a.
[0024]
In addition, the operation unit main body 6a is provided with a fixed handle 42 and a rotatable movable handle 43 constituting an operation means on the outer peripheral surface, and the operation handle 8 (see FIG. 1) is formed by the fixed handle 42 and the movable handle 43. Is configured. The operation unit body 6a is provided with electrode pins 44 for high frequency connection to which a high frequency power supply device (not shown) is connected.
[0025]
The upper portion of the fixed handle 42 is formed integrally with the cylindrical operation unit main body 6a. Furthermore, the operation end of the fixed handle 42 is provided with a finger hooking hole 42a for selectively inserting a finger other than the thumb, and the operation end of the movable handle 43 is provided with a finger hooking hole 43a for holding the thumb of the same hand. Yes.
[0026]
Further, a bifurcated connecting portion 43 b is formed on the upper end portion side of the movable handle 43. These bifurcated connecting portions 43b are arranged on both sides of the operation portion main body 6a. Furthermore, a handle pivot shaft 45 is provided at the upper end of each connecting portion 43b so as to project inward. These handle pivot shafts 45 are connected to the operation portion main body 6a with a position above the axis of the insertion portion outer tube 4 as a fulcrum. Accordingly, the movable handle 43 is pivotally supported by the handle pivot shaft 45 so as to be rotatable. The handle pivot shaft 45 is provided with an insulating cap for high frequency insulation.
[0027]
Furthermore, each connecting portion 43b of the movable handle 43 is provided with an operating shaft 47 below the handle pivot shaft 45, and this operating shaft 47 is disposed in the operating portion main body 6a so as to be able to advance and retract in the longitudinal direction. It is engaged with a substantially cylindrical member (slider; not shown). A vibration transmitting member 9 is inserted into the slider, and a base end of a rod-like operation rod 50 (see FIG. 5) that is inserted into the insertion portion outer tube 4 is fixed. As a result, the operating rod 50 moves back and forth in the axial direction, and transmits an opening / closing operating force to a jaw 51 described later connected to the distal end side of the operating rod 50.
[0028]
That is, the movable handle 43 and the operating shaft 47 constitute an operating means. In this embodiment, when the movable handle 43 is closed by holding the handle, the operating shaft 47 moves forward, The operation rod 50 is pushed out to the distal end side, and the jaw 51 is configured to close with respect to the treatment portion 41f. The operating shaft 47 is disposed on a substantially axis line of the insertion portion outer tube 4.
[0029]
The insertion sheath portion 31a is provided with the insertion portion outer tube 4 described above, and the proximal end portion of the insertion portion outer tube 4 together with the rotary knob 48 is connected to the distal end portion of the operation portion main body 6a. It is rotatably attached around the center line of the main body 6a. Further, the vibration transmitting member 9 of the probe unit 32 is inserted into the insertion portion outer tube 4. An operation rod 50 that is connected to the vibration transmission member 9 and is connected to the jaw 51 is inserted into the insertion portion outer tube 4 so as to freely advance and retract. The operating rod 50 is disposed in the insertion portion outer tube 4 leaving a gap.
[0030]
The insertion portion outer tube 4 is formed by mounting an insulating tube 49 on the outer peripheral surface of a metal tube (not shown). The insulating tube 49 is provided so as to cover most of the entire outer peripheral surface of the insertion portion outer tube 4 up to the base end portion.
[0031]
In addition, a one-side opening type jaw 51 for gripping a living tissue is rotatably provided at the distal end working portion 31 b of the handle unit 31. The jaw 51 is supported by a jaw holding portion 52 provided at the distal end portion of the insertion portion outer tube 4, and the distal end portion of the substantially tubular holding portion main portion 52 a is covered with an insulating cover 53. Insulation against high-frequency current is performed.
[0032]
The jaw 51 is attached with a gripping member 54 for gripping a living tissue (organ). The gripping member 54 is formed of a low friction material such as PTFE (Teflon: trade name of DuPont), for example. Further, a substantially serrated tooth portion 55 is formed. In addition, since the gripping member 54 is poor in rigidity as a single unit, it may be secured by attaching a metal reinforcing member (not shown).
[0033]
Here, the jaw 51 has a configuration in which a shaft member and a fitting hole for attaching to the distal end portion of the holding portion main portion 52a to be rotatable are reduced as much as possible. Specifically, as shown in FIG. 5, the jaw 51 is opposed to the treatment portion 41 f of the vibration transmitting member 9, is an elongated blade portion 51 a to which the gripping member 54 is attached, and is slanted from the proximal end side of the blade portion 51 a. A frame portion 51b that extends downward and through which the vibration transmitting member 9 is inserted, extends from the lower end of the frame portion 51b in the opposite direction to the blade portion 51a, and is fixed to the tip opening of the holding portion main portion 52a. The arm portion 51c that is elastically curved according to the forward / backward movement of the rod 50 is mainly configured. FIG. 5 shows a state where the insulating cover 53 is removed.
[0034]
The distal end connecting portion 50a of the operation rod 50 is pivotally attached to the base end side of the blade portion 51a via a pivot pin 56, and the frame portion 51b extending from the proximal end side where the pivot pin 56 is provided is A shape that covers the vibration transmitting member 9 and is connected to the arm portion 51c, for example, a bifurcated shape or a cylindrical shape. The arm portion 51c is formed of, for example, an elongated plate-like elastic member or a plurality of rod-like elastic members, and the base end side is fixed to the inner peripheral surface of the holding portion main portion 52a by welding or the like.
[0035]
That is, the jaw 51 shown in FIG. 5 is provided with a pivot pin 56 only at the connecting portion with the operation rod 50, and the arm portion 51 is elastically deformed with respect to the forward / backward movement of the operation rod 50. The blade member 51a is opened and closed with respect to 41f), and the shaft member can be eliminated as a pivot point.
[0036]
In this case, the blade part 51a, the frame part 51b, and the arm part 51c may be formed integrally or separately from each other, but at least the arm part 51c needs to be formed of an elastic member. That is, the blade part 51a and the frame part 51b need to ensure rigidity for grasping a living tissue with an appropriate pressure, and the arm part 51c is an elastic member that can open the blade part 51a with an appropriate operating force. Since sufficient resistance to repeated bending stress is required, the blade part 51a, the frame part 51b, and the arm part 51c are each set with an optimum material and shape.
[0037]
The ultrasonic treatment apparatus 1 having the above configuration performs treatment such as coagulation incision or peeling of a living tissue. The surgeon grasps the fixed handle 42 of the handle unit 31 and operates the movable handle 43. Then, by operating the movable handle 43, the operating rod 50 advances and retreats within the insertion sheath portion 31a, and the jaw 51 facing the treatment portion 41f of the probe unit 32 is opened and closed.
[0038]
When the jaw 51 is opened, the operating rod 50 is pulled in the proximal direction, and the pulling force of the operating rod 50 is transmitted from the frame portion 51b connected by the pivot pin 56 to the arm portion 51c. As a result, as shown in FIG. 6, the arm portion 51 c whose end is fixed to the holding portion main portion 52 a of the jaw holding portion 52 is elastically curved, and the blade portion 51 a is against the treatment portion 41 f of the probe unit 32. And rotated in the opening direction.
[0039]
Further, during the closing operation of the jaw 51, the living tissue is grasped between the treatment portion 41 f and the grasping member 54 of the jaw 51 by pressing the grasping member 54 of the jaw 51 against the treatment portion 41 f of the probe unit 32. It is like that. Then, the surgeon steps on the foot switch 3 and performs ultrasonic treatment such as coagulation or incision on the grasped living tissue by frictional heat with the treatment portion 41f that vibrates at high speed. The jaw 51 is also used for exfoliation of living tissue.
[0040]
As described above, the ultrasonic treatment device 1 has a simple configuration by reducing as much as possible the shaft member for allowing the jaw 51 of the ultrasonic treatment tool 2 to rotate and the fitting hole into which the shaft member is fitted. Therefore, when manufacturing jaws and peripheral parts, it is possible to reduce precise and complicated processing and assembly man-hours, improve production efficiency, and contribute to a reduction in total cost.
[0041]
In addition, even when the ultrasonic treatment instrument 2 is sterilized and disinfected even after the product is shipped, it is easy to clean around the jaw 51, improve the cleaning and sterilization, and improve the use efficiency of the apparatus. it can.
[0042]
The configuration of the jaw 51 described above may be a configuration as shown in FIG. 7, and similar actions and effects can be obtained. That is, the jaw 60 shown in FIG. 7 rotates the base portion of the elongated blade portion 60a to which the grip member 54 is attached facing the treatment portion 41f to the distal end portion of the holding portion main portion 52a via the pivot shaft 61. The operating rod 63 is pivotally supported and is connected to the upper surface side of the blade portion 60a via an elastic connecting member 62. The operation rod 63 is formed in a tubular shape, and the vibration transmitting member 9 is inserted into the operation rod 63. The operation rod 63 is fitted and fixed to the aforementioned tip of the slider in the operation portion main body 6a.
[0043]
The connecting member 62 that connects the blade portion 60a and the operation rod 63 is formed by integrally forming the tubular operation rod 63 with an elastic member and processing the tip of the operation rod 63 made of this elastic member. In this case, the connecting member 62 that is an extension of the operation rod 63 is fixed to the blade portion 60a by welding or the like.
[0044]
Further, the operating rod 63 and the connecting member 62 may be formed as separate members and coupled to each other by welding or the like. Furthermore, the blade portion 60a is formed of a material having necessary rigidity and elasticity, and this The base end side of the blade part 60a may be extended to form the connecting member 62.
[0045]
The jaw 60 having such a configuration is rotated about the pivot shaft 61 as a fulcrum and is opened and closed by elastic deformation of the connecting member 62 accompanying the forward and backward movement of the operation rod 63. Thereby, like the above-mentioned jaw 51, it is possible to improve the productivity of the apparatus with a simple configuration and improve the cleaning and sterilization in the actual use state in the market.
[0046]
Next, a second embodiment of the present invention will be described. 8 and 9 relate to a second embodiment of the present invention. FIG. 8 is a side view showing the jaw before assembly, and FIG. 9 is a cross-sectional view of the main part around the jaw after assembly.
[0047]
In the second embodiment, an opening / closing mechanism is formed on the jaw 51 (60) of the first embodiment without using any shaft member or fitting hole. As shown in FIG. The distal end portion of the tubular operating rod 71 is formed by processing by wire cutting or the like.
[0048]
That is, the blade portion 70a for attaching the gripping member 54 to the treatment portion 41f is formed by cutting off the distal end portion of the tubular operation rod 71 while leaving a part of the side wall elongated. In addition, the first side wall located on the same side as the blade part 70a and the second side wall opposite to the first side wall are cut out behind the blade part 70a so as to be elongated. A first curved portion that elastically connects the blade portion 70a and the operation rod 71 by separating the axial base end portion of the side wall from the cylindrical surface of the operation rod 71 to be a free end. The second side wall is formed as a second curved portion 70c that elastically connects the blade portion 70a and the holding portion main portion 52a.
[0049]
Then, as shown in FIG. 9, the jaw 70 is housed in the holding portion main portion 52a, and the free end of the second bending portion 70c is fixed to the inner peripheral surface of the holding portion main portion 52a by welding or the like. By attaching the gripping member 54 to the blade portion 70a, an opening / closing operation corresponding to the forward / backward movement of the operation rod 71 is enabled.
[0050]
In addition, since the site | parts which require elasticity are the 1st, 2nd curved parts 70b and 70c, these both or one is formed with another member which has elasticity, and it adheres and integrates by welding etc. You can do it.
[0051]
In the jaw 70 in the second form, the first and second bending portions 70b and 70c are elastically bent by the forward and backward movement of the operation rod 71, and the opening and closing operation of the blade portion 70a with respect to the treatment portion 41f is performed. Accordingly, in order to appropriately elastically deform the first and second curved portions 70b and 70c, the first and second curved portions 70b, 70b, It is important to set the length and width of 70c, and it is also effective in obtaining desired elasticity to add a shape adjustment by providing a slit in the longitudinal direction.
[0052]
In the second embodiment, since the shaft member and the fitting hole are not used at all as a mechanism for making the jaw 70 rotatable, the configuration is simpler than that of the first embodiment, and the productivity and market of the apparatus are increased. The washing and sterilization can be further improved. Moreover, by processing the tubular operating rod 71 to form the jaw 70, the processing man-hours and assembly man-hours can be further reduced, which can contribute to cost reduction.
[0053]
【The invention's effect】
As described above, according to the present invention, the opening and closing mechanism around the jaws can be simplified to improve the productivity of the apparatus, and the washing and sterilization properties in the actual use state in the market can be improved.
[Brief description of the drawings]
1 is an overall configuration diagram of an ultrasonic treatment apparatus according to a first embodiment of the present invention. FIG. 2 is a circuit block diagram of the ultrasonic treatment apparatus. FIG. 3 is an exploded view of an ultrasonic treatment instrument. FIG. 4 is a side view showing the assembled state of the entire ultrasonic treatment instrument. FIG. 5 is a cross-sectional view of the main part around the jaw. FIG. 6 is a cross-sectional view of the main part showing the open state of the jaw. FIG. 7 is a cross-sectional view of the main part showing a modified example of the jaw. FIG. 8 is a side view showing the jaw before assembly according to the second embodiment of the present invention. Cross-sectional view of the surrounding area [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Ultrasonic treatment apparatus 2 ... Ultrasonic treatment tool 6 ... Operation part 9 ... Vibration transmission member 20 ... Drive circuit 32 ... Probe unit 33 ... Vibrator unit 50, 63, 71 ... Operation rod 51, 60, 70 ... Jaw 52 ... Jaw holder

Claims (3)

An ultrasonic probe for transmitting ultrasonic vibration generated by an ultrasonic transducer and treating living tissue;
A jaw for gripping a living tissue between the openably provided for the ultrasonic probe, the ultrasonic probe,
A jaw holding part for supporting the jaw;
An operation rod connected to the jaw and operated to advance and retreat, and transmitting an opening / closing operation force to the jaw;
The jaw is rotatably connected to either one of the jaw holding part and the operation rod via a shaft member, and the other is non-axially connected to the other via an elastic member.
An ultrasonic treatment apparatus characterized by that. The jaw has a blade portion facing the tip of the ultrasonic probe,
The base end side of the blade portion is pivotally connected to the operation rod via a pivot pin, and the portion extending downward from the base end side of the blade portion is in accordance with the advance / retreat operation of the operation rod. The ultrasonic treatment apparatus according to claim 1, wherein the ultrasonic treatment apparatus is coupled to the jaw holder through an elastically curved arm . The jaw has a blade portion facing the tip of the ultrasonic probe,
A base end side of the blade portion is pivotally connected to the jaw holding portion via a pivot shaft, and an upper surface side of the blade portion is connected via a connecting member that is elastically deformed in accordance with the advance / retreat operation of the operation rod. The ultrasonic treatment apparatus according to claim 1, wherein the ultrasonic treatment apparatus is coupled to the operation rod.

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